Car-replacing jack



(No Model.)

L. P' LONGMORE.

GAR REPLACING JACK.

No. 330,842. Patented Nov. 17, 1885,.

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' UNITED STATES PATENT OFFICE.

LEWIS F. LONGMORE, OF LOWELL, ASSIGNOR OF ONE-HALF TO GEORGE A. BYAM, OF GHELMSFORD, MASSACHUSETTS.

CAR-REPLACING JACK.

SPECIFICATION forming part of Letters Patent No. 330,842, dated November 17, 1885.

Application filed March 9, 1885. Serial No. 158,161. (No model.)

To all whom it may concern:

Be it known that I, LEwIs F. LONGMORE, a citizen of the United States, residing at Lowell, in the county of Middlesex and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Gar-Replacing Jacks, of which the following is a specification.

My invention relates to car-replacing jacks; and it consists in devices hereinafter described, which may be used in combination with ordinary hydraulic or other jacks.

In the accompanying drawings, Figure 1 is an end elevation of a box-car supported by my car-replacing jacks above the rails of a track, said rails being in cross-section; Fig. 2, a side elevation of part of the side of such a car and one of its trucks, a rail of the track, and a hydraulic jack with my improvement placed beneath said car; Fig. 3, a side elevation of such a jack, the parts added by me being in longitudinal vertical section; Fig. 4, a plan of the jack, a part of the swivel-plate and slide being broken away to show the anti-friction balls; Fig. 5, a vertical cross-section on the line a; w in Fig. 3; Fig. 6 like Fig. 5, except that anti-friction cones are used in place of the anti-friction balls shown in Fig. 5; Fig. 7, a plan of my invention, with the top plate removed, showing the anti-friction cones.

When railway-cars are derailed by accident, it is desirable to have at hand means of instantly replacing the same upon the track without the assistance of wrecking-cars. The appliances used for this purpose are usually either inclined planes, and require the car to be drawn or driven along over the ground and over said planes, or else are too cumbersome to be conveniently carried on a locomotive.

The object of my invention is to provide means which, used in combination with a jack of ordinary constructionsuch as are commonly found on locomotive-enginesmay be readily carried on the locomotive, and be quickly placed in position for use.

The car A, truck B, brake O, flanged wheels D, and track E are all of the usual construction and operation. The jack J is an ordinary hydraulic jack, j being its base, 9" its cylinder, j its piston, j its head, and j its lever-socket. Upon the top of the head j rests a bed-plate,

G, provided with downward vertical projections adapted to receive said head g 9. One of those projections, g, is provided with two horizontal screws, g 9 which turn in said projection g and thrust against said head 9' one, 9, above the rounded swell j of the head and the other below the middle of said swell, these two screws holding the bed-plate firmly in place on said head. The bed-plate G is in shape a rectangular box, the ends 9 g of which support a screw, F, which passes through holes in said ends and turns without advancing, the parts of the screw F where it passes through said ends being smooth to form journals for said screw. The screw F has a square or fiat-sided stem, f, and is rotated by a crank or winch, f applied to said stem.

On the top of the side of said bed-plate G are raised V-shaped ways 9' g. A slide, H, is provided on its under side with V-shaped grooves h h, adapted to receive said ways, and with an internally-threaded shank or nut, h depending from said slide and engaged by the screw F. Above the slide is aswivelplate, I, turning on a vertical stud, h projecting upward from said slide. The slide H and swivel-plate I are provided on their adjacent faces with equal annular grooves h i, in which are placed anti-friction balls, as shown in Figs. 3, 4, and 5, or with anti-friction cones, as shown in Figs. 6 and 7. The swivel-plate I is provided with a vertical flange, t", at one edge thereof.

The jack, with myimprovement attached thereto, is put under the car to be replaced in such a manner that the swivel-plate will,when raised by the jack, be under the sill of the car and the flange of said swivel-plate will be at the side of the car. Two such replacers (one at each side of the car) are used at once, as shown in Fig. 1; but the screw F is omitted from one of them. Each bed-plate G has attached thereto two chains, L, the ends of which have hooks adapted, when in use, to be hooked over the axle-boxes b b of the truck, as shown in Figs. 1 and 2, and to lift the truck with the car.

In operation the jacks, with the above-described devices, being placed under the sills of the derailed car, with the flanges of the swivel-plates against the outer sides of said sills and the chains attached, as above described, the car is lifted by the customary operation of the jacks, and a lateral motion is then given to the car, to bring it over the rails, by turning the cranks f which causes the slides to move laterally on the bed-plate, one of said slides being moved directly by't-he screw F and the other by the motion of the car, the swivel-plates allowing the end of the car being operated on to swing on the truck at the other end of the car. f

I am aware that heretofore jacks have been constructed to slide upon and aboveways by the propulsion of a screw in order to move laterally a weight previously raisedby the jack, and that jacks have been provided with swiveling heads; but I am not aware that such sliding devices have been placed above the head of the jack.

I claim as my invention l. The combination, with a jack, of a bedplate provided with downward projections to receive thehead of said jack, one or more holding-screws turning in-one of said projections and thrusting againstthe head of said jack, a slide resting on said bed-plate and provided with a nut, and a screw turning in said bed-plate and engaging with said nut, as and for the purpose specified.

the truck of a railway-car, as and for the pur- 40 pose specified.

' LEWIS F. 'LONGMORE.

I Witnesses: ALBERT M. MOORE, GERTRUDE M. DAY. 

